A regular service (from RM80) is the light, frequent clean that keeps a healthy unit healthy. The technician removes and washes the filters, sprays down the indoor coil with water, clears and checks the drain line, wipes the blower and cover, and runs a quick performance and gas-pressure check.
It takes around 30–45 minutes per unit, needs no major dismantling, and is what you should be doing every 3 months in Malaysia's climate. Think of it as washing your car — regular upkeep, not a deep restoration.
A chemical wash (from RM120, depending on unit type) goes much further. The indoor unit is partially dismantled, and the evaporator coil and blower wheel are cleaned with a specialised chemical solution that dissolves mould, biofilm, and mineral grime that plain water can't shift. The drain pan and line are flushed thoroughly too.
It takes longer — typically 45–60 minutes per unit — and is what you need when a unit has been neglected, smells musty, or has lost cooling power. It's the full detail, not the quick wash.
How to tell which one you need
You can usually decide with a few simple checks:
- When was it last serviced? Under 4–5 months and on schedule — a regular service is fine. Over a year — start with a chemical wash.
- Is there a smell? A musty or sour smell when the unit starts means mould on the coil. Water alone won't remove it; you need a chemical wash.
- How's the cooling? If the room takes much longer to cool than it used to, the coil is likely caked — a chemical wash restores airflow.
- Can you see grime? Open the front cover. A grey-black film on the metal fins behind the filter is biofilm — that's a chemical-wash job.
Not sure which your unit needs?
Send us a photo of your unit and tell us the last time it was serviced — we'll tell you honestly whether a regular service or a chemical wash makes sense, with no obligation.
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The two aren't either/or — they work together over the year. Most homes do regular servicing quarterly and add a chemical wash once a year (or when a smell appears). Skipping the regular cleans just means you'll need chemical washes more often, which costs more in the long run.
Regular Service vs Chemical Wash — quick reference
- Regular service — from RM80 · every 3 months · 30–45 min · light clean, no dismantling
- Chemical wash — from RM120 · once a year (or when needed) · 45–60 min · deep clean, coil dismantled
- Smell or weak cooling? → chemical wash first, then back to quarterly servicing
- On schedule, all good? → regular service is all you need